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Ratio FreeDiver Helium Safe 1000M Sapphire Quartz 1038EF102V Men's Watch

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Ratio FreeDiver Helium Safe 1000M Sapphire Quartz 1038EF102V Men's Watch

Model:   1038EF102V
Model:   1038EF102V

US $260.00 US $140.00 Save: US $120.00 (46% off)

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RATIO 1038EF102V Details

Ratio FreeDiver Helium Safe 1000M Sapphire Quartz 1038EF102V Men's Watch

This is a deepdiving-readied freediving watch that does not require you taking a second mortgage for acquiring. It complies with all the practical points that impart an underwater timepiece its purpose. Contrary to dive watches branding the wearer as a diver, wearing this one will let people rather know about your love of deep waters. It is designed also to withstand high water pressures for long, sustained stretches. Even the splash you immediately get after jumping off the dive boat.

For More Information:

Stainless Steel Case
PU Strap
Quartz Movement
Caliber: Seiko VX42E
Sapphire Crystal
Black Dial With Logo "RATIO"
Analog Display
Bezel With Ceramic Inlay
Helium Valve
Luminous Hands And Markers
Date Display
Screw Down Crown
Engraved Caseback (With Image Of A Free Diver)
Buckle Clasp
1000M Water Resistance

Approximate Case Diameter: 45mm
Approximate Case Thickness: 12mm


Brand Ratio
Series FreeDiver
Model 1038EF102V
Gender Men's
Movement Quartz
Engine Caliber: SEIKO VX4E


Case Size 45.00 mm
Case Thickness 12.00 mm
Case Material Stainless Steel
Crown Screw Down Crown
Case Shape Round
Case Back Screwed Case Back
Bezel Unidirectional Bezel


Dial Type Analog
Dial Color Black
Crystal Sapphire
Hands Luminous Hands
Dial Markers Dotted Markers
Luminiscence Hands And Markers


Water Resistance 1000M
Calendar Date Display
Functions Date, Hour, Minute, Second
Features Analog Display, 1000M Water Resistance


Band Type Strap
Band Material Polyurethane
Clasp Buckle Clasp


Style Diver's
Warranty 2 Years International Warranty
Upc Code 727542492789
Ean Code 0727542492789
Internal Id 1038EF102V
Product Category Watches
Ships in 24 hours (Except for Weekends & Holidays). FREE FEDEX Shipping for USA orders (Delivery in 2-4 days)

Packaging: Shipped in RATIO box with all the product documents(depending on shipping method chosen at checkout).

Box is secured in an additional super-strong non-collapsing cardboard box.

Warranty: 2 Years International Warranty. Refer to Warranty section for more information.

Guaranteed 100% genuine and brand new.

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Customer Reviews

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Overall Rating

(18 reviews)
Verified Buyer

May 02, 2022

The goods arrived in Russia (Moscow) in 18 days! The watch fully corresponds to the price / quality for this category. Good looking watch, medium size, not bulky, fits well on the wrist (17 cm). The arrowsmarks are well readable, they glow in the dark almost until the morning. My watch has an accuracy of +9 seconds per month. Watches for every day, incl. for recreationsports - just right. I did not find any shortcomings. Of course, I recommend this watch for purchase. Thanks for the quality service! I have bought watches you many times andthe watches are of good qualitystill work well! You have a good shop!

lucho garcia
Verified Buyer

March 27, 2022

Exelente reloj me gusta mucho , llego muy rapido. Gracias

Verified Buyer

December 04, 2021

Precioso reloj de buceo de calidad a un precio excelente. Página de compra con gran variedad de modelos y fácil de consultar. Envío rápido.

Verified Buyer

November 16, 2021

Great communication, great watchfast shipping.

Kien C. Tran
Verified Buyer

November 09, 2021

Got the watch todayit took less than a week to get here to Canada. Thank you so much for your excellent services, as always. This is my second Ratio watch, andI can say is WOW! This watch is so beautifulvery high quality with a reliablerobust Seiko quartz, sapphire crystal, ceramic bezel insert, excellent lume (on par with Seiko lumibrite),not to mention 1000m water-resistanthelium valve. For this price, this is an outstanding value!. Highly recommended. Thank you so much CWwill buy again soon!

Verified Buyer

October 19, 2021

Top Tool Watch! Saphir Crystal, Ceramic Bezel, Seiko Movement, Good Rubber Starp.

Verified Buyer

October 19, 2021

Top Tool Watch Design! Saphir Crystal, Ceramic Bezel, Seiko Moment . Good Rubber Starp.

Verified Buyer

October 18, 2021

Very good quality thanks a lot

Konstantin Denessiouk
Verified Buyer

September 16, 2021

Ratio watches are very comfortable. In the Ratio FreeDiver 1038EF102V model, the Ratio designers took every single feature of the watch uplifted it to excellence: A simple, but very decent Japan made movement; a bezel with ceramic inlay, which is aligned well with 12.00; an excellent luminophore, comparable or better than in Orient Ray II newer; a very decent water resistance a stylish modern over design. -in- a very comfortable choice, one would return to again again, even if you have a large collection to choose . Best score me.

Verified Buyer

September 14, 2021

Super quality product, the real worth of money.

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Product Description

Ratio FreeDiver Helium Safe Sapphire Quartz 1038EF102V 1000M Men's Watch

The Ratio FreeDiver Helium Safe 1000M Sapphire Quartz 1038EF102V is for them who love to explore!

It is a watch that converts your exuberance towards unknown realms into a reality!

The FreeDiver Helium Safe 1000M offers you newer chances and challenges amidst newer depths and dimensions.

You never know what or where your curiosity might lead you next! So we made a watch that can take you beyond the maximum Freediving limits if needed; we made it for explorers with inquisitive minds.

6 reasons why you should go for the Ratio FreeDiver Helium-safe 1000M watch

  • A well-done watch that’s solidly constructed, the Ratio FreeDiver Helium Safe 1000M Blue Dial Stainless Steel Quartz is an all-around instrument for marine enthusiasts and desk-divers alike. This one joined the hit parade immediately after the 200m Freediver made to the scene and became an instant hit.

  • This excellent tool/diver watch makes you aspire for deeper underwater realms. It has amazed everyone with its wide depth range and features. It surfaces for everyone who looks forward to newer experiences perilous yet pleasurable.

  • The Ratio FreeDiver Helium Safe 1000M Blue Dial Stainless Steel Quartz 1038EF102V is a heavy watch. The heavy-gauge surgical steel construction (case, screw-down crown, engraved case-back w/image of a free diver and the deployment clasp) gives it the weight. It pleasantly assures its presence with its heft while increasing the momentum of your hand’s movements, rather than tying you down with its weight. The thick gauge, surgical-grade stainless steel and the sapphire crystal offers high resistance against tremendous water pressure; physical impacts and violent tugs. The crystal, the case and the case back protect the Japanese quartz movement (with its own shock/magnetism resistant features) within entirely against knocks, bumps and drops.

  • A large sized dial made of brass and painted using silkscreen technique; a big date window and prominent hands and hour markers offer maximum visibility under murky environments and when under pressing situations, you do not have to squint to focus on the dial to read the time (or the bezel/timer reading). A big advantage is the non-radioactive lume-filled prominent hour markers (especially at 12, 6 and 9); they are big, bright and with an almost infinite longevity. It also ensures longer hours of illumination.

  • The serrated bezel, the grooved crown and the knurled helium-valve cover – All facilitate a firm grip with wet fingers, with or without the diving gloves on. It is advised not to operate the crowns under wet conditions. Note: You’ll need the helium valve in your watch for times when you are in a chamber filled with breathing mixture; not necessarily diving bells. You open the valve to let the trapped helium out, which got past the gaskets and seals due to their very fine dimensions. A decreasing external/environmental pressure would make the helium to expand fast and damage the seals, crystal and gaskets in an attempt to escape. The helium valve provides an outlet for the built up pressure to escape.

  • The hour and minute hands of the Ratio FreeDiver Helium Safe 1000M Blue Dial Stainless Steel Quartz 1038EF102V are unique in their shapes. The hour and minute hands are a mix between arrow and sword shapes while the seconds-hand is an improvisation on the sword-style. The red-border on the minutes hand ensures you do not miss out on its position while using the bezel as an elapsed-time indicator.

Ratio FreeDiver Helium Safe 1000M Blue Dial Stainless Steel Quartz: A sum up of time and personal experiences

The Ratio FreeDiver Helium Safe 1000M Blue Dial Stainless Steel Quartz is a great tool watch to which anyone who takes freediving seriously should give a thought. Its specs match that of any pro-grade diver watch but the cost doesn’t. The Ratio FreeDiver Helium Safe 1000M Blue Dial Stainless Steel Quartz wears a tag that’s unbelievably lower than the rest in its league. You’ll be hard-pressed to find another watch from another brand that offers for the same amount.

Specs and their implications

Water Resistance:

  • Water resistant up to 3300ft (1000m).

  • Suitable for professional and everyday use.

  • Suitable for Skin Diving, Scuba Diving, Deep diving, Swimming, Snorkeling, Surfing; spear-fishing; moderate to high-intensity land sports.


Ratio uses non-radioactive luminescent paint for the luminescence in the Freediver 1000m watch. It is a non-radioactive, radiant paint that's applied generously on the hands and the indices of the Freediver. The paint exhibits greater intensity and longer-lasting luminescence. Its output duration doesn’t let you compromise on visibility; let it even be for a few extra hours in the dark! A 10-minutes long exposure to 500 lux or higher intensity light will charge the lume for the next 3-5 hours. A continuous 8-hour exposure to Sunlight on a normal summer day will let it glow for 10+ hours. The longevity of the paint is semi-permanent, ensuring full functionality of the watch even after years of active use.



    SEIKO VX42E Analog Quartz 11 1/2''' Slim Movement [Three hands (H/M/S) with Calendar]


    i. Pre-adjusted tuning fork quartz oscillator; 32,768 Hz

    ii. Operating range: -5℃ to +50℃.


  • 3 Hands Hour / Minute / Second

  • Calendar Instant setting device for date calendar

  • Reset switch

  • Crown pulled out 1st click: Instant date change

  • Crown pulled out 2nd click: Time setting/Reset


  • Jewels: 0

  • Anti-magnetism: Over 1600A/m (Direct current magnetic field)


  • Type / Size Silver oxide battery; φ9.5mm/2.0mm

  • Recommended battery SR920SW (Maxell, Murata, Seizaiken); 1.55 V

  • Battery life Approx. 3 years


  • Equipment: SEIKO quartz tester QT-99, Greiner
    quartz timer-C , Witschi Q-tester 4000.

  • Accuracy: ±20 seconds per month (on wrist).

1038EF102V-BLU-V02 1000M Men's Watch
1038EF102V 1000M Men's Watch
Case Size 49m 45mm
Movement Quartz Quartz
Functions Day, Date, Hour, Minute, Second Date, Hour, Minute, Second
Features Analog Display, 1000M Water Resistance Analog Display, 1000M Water Resistance
Band Material Polyurethane Polyurethane
Crystal Sapphire Sapphire
Water Resistance 1000M 1000M
Engine Caliber: Seiko VX42E Caliber: SEIKO VX42E
Dial Color Blue Black
Dial Markers Dotted Markers Dotted Markers

Prime points

  • Generous use of solid, surgical-grade stainless steel and lume material.

  • Visually appealing watch face with uniquely shaped hands.

  • A proven, reliable movement (Seiko VX42E) with its own magnetism/shock resistant properties.

  • Sapphire crystal

  • 1000m water-resistance


Analog, blue dial with large, prominent hands and hour indices, covered from the top with a sapphire crystal

Case, case back and bracelet material

316L Stainless Steel w/ Deployment Clasp

Other features

2 and 4’o clock crowns: The 4’o clock screw-down crown is for time and date adjustments while the 2’o clock screw-down crown is the helium escape valve. They are placed in a manner that minimises damage to the watch in case of a frontal impact and eliminate the chances of wrist bites if your palm folds against your wrist.

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